Bill, Thanks for the replies on this. The boot args do append more arguments to the line, however, I need to change values that already exist. This is a screen shot of the systempkg basic config. We do not currently list any additional arguments in the boot kernel params line of the system package. See

The append line in the pxelinux.cfg file created for the system looks like:

During a provisioning, we notice that certain models of servers get an out of memory error at some point during the process. It happens a different times on each model of server. When we build from ISO using the same media, we do not see this out of memory error. I was attempting to bump up the assigned memory during the build process.

This is the configuration line off the pxelinux.cfg in the xen 6.5 iso, /boot/isolinux/isolinux.cfg:

My guess is that we are missing the "max:" line and the new kernel doesn't understand the old syntax? I am unable to test the theory since when i use the boot parameters option in blade it doesn't seem to have any affect on the server's memory configuration.